A student wanted to determine how tall corn would grow if different types of fertilizer were used. What is the dependent variable?
a. The student
b. How tall the corn grows
c. The type of fertilizer used
d. The type of corn

I am pretty sure that B. How tall the corn grows is the dependent

The student is not a variable in how tall the corn grows, and the question does not indicate any different types of corn in this.

So the independent variable would be the type of fertilizer and the dependent variable would be the height of the corn.

I hope this is right and helps, have a good day!

Answer(b) both involve the use of levers;